Untreated MM spheroids exhibited significantly higher proliferation compared to LUAD spheroids (Figure 3A,B; Figure S3A,B), with 8.8% ± 4.8 Ki67-positive cells for MM vs. 2.2% ± 1.4 for LUAD (p < 0.01). The gene discussed is MKI67; the disease is Miyoshi myopathy.